CHEMISTRY COLLEGE

A rock has a mass of 15 grams and a volume of 5 cm3 what is the density of the object

Answers

Answer 1
Answer:

Answer:

The answer is

3.0 g/cm³

Explanation:

To find the density of a substance when given the mass and volume we use the formula

density = (mass)/(volume)

From the question

mass = 15 g

volume of rock = 5 cm³

The density of the substance is

density = (15)/(5)

We have the final answer as

3.0 g/cm³

Hope this helps you
Answer 2
Answer:

Final answer:

The density of an object is calculated by dividing its mass by its volume. In this case, the rock's density is 3 g/cm3.

Explanation:

The process to determine the density of an object involves dividing its mass by its volume. Here, the rock has a mass of 15 grams and a volume of 5 cm3. Thus, the density can be calculated by the formula:

Density = Mass / Volume.

Plugging the given numbers into this formula results in:

Density = 15 grams / 5 cm3.

Therefore, the density of the rock is 3 g/cm3.

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A primary amine contains a five-membered carbon ring. The degree of unsaturation for the five-membered carbon ring is equal to three. In the chemical formula, there are seven carbon atoms. Determine its chemical formula.

HELPPP PLEASEEE....How does a glass of juice become cold when you add ice to it?
aThe ice makes the glass colder so the juice becomes colder.
bThe ice cools the glass of juice because the slow moving particles in the ice cause the particles of the juice to slow down.
cIce is colder than the juice. The cold travel from cold to warm until both items are the same temperature.
dThe juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.

Answers

Answer:

C.

Explanation:

The other ones just don't make sense as answers to the question

Answer:

B

Explanation:

ice molecules move slowly and cluster tightly together, they produce a low amount of heat

Please answer this question

Answers

Answer:

I'm not an expert at this, but I assume its mercury.

Which of the following is a chemical property?A. Gallium metal melts in your hand.
B. Platinum does not react with oxygen at room temperature.
C. The page of the textbook is white.
D. The copper sheets that form the "skin" of the Statue of Liberty
have acquired a greenish coating over the years.

Answers

The answer is D I asked the teacher

Final answer:

A chemical property is a characteristic observed during a reaction where the substance's chemical composition changes. In the provided options, 'Platinum does not react with oxygen at room temperature' and 'The copper sheets of the Statue of Liberty have acquired a greenish coating over the years' are chemical properties.

Explanation:

In Chemistry, a chemical property is a characteristic that is observed during a reaction in which the chemical composition or identity of the substance is changed. Taking a look at the options provided:

  • Gallium metal melts in your hand is a physical property as melting point is not a chemical change.
  • Platinum does not react with oxygen at room temperature is a chemical property because it is about the propensity of platinum to react (or not react) which is a chemical behavior.
  • The page of the textbook is white is physical property because color does not indicate a chemical change.
  • The copper sheets that form the 'skin' of the Statue of Liberty have acquired a greenish coating over the years is also a chemical property because the green coating is a result of a chemical reaction (oxidation).

So, the correct answers are options B and D. Both entail a change or lack of change in the chemical identity of a substance.

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Write a balanced chemical equation for the standard formation reaction of gaseous dinitrogen tetroxide

Answers

Answer:

N_2(g)+2O_2(g)\rightarrow N_2O_4(g)

Explanation:

Hello,

In this case, considering the required product which is dinitrogen tetroxide whose molecular formula is N₂O₄, by considering its formation reaction which is starting by both gaseous nitrogen and oxygen as shown below:

N_2(g)+O_2(g)\rightarrow N_2O_4(g)

Nevertheless, it should be balance since four oxygen atoms are present at the right side, thus, we obtain:

N_2(g)+2O_2(g)\rightarrow N_2O_4(g)

Best regards.

Which of the following statements is true with regard to transverse and longitudinal waves?Group of answer choices

Both transverse waves and longitudinal waves have motion parallel to velocity.

Both transverse waves and longitudinal waves have motion perpendicular to velocity.

Transverse waves have motion parallel to velocity, while longitudinal waves have motion perpendicular to velocity.

Transverse waves have motion perpendicular to velocity, while longitudinal waves have motion parallel to velocity.

Answers

The true statement is that Transverse waves have motion perpendicular to

velocity, while longitudinal waves have motion parallel to velocity.

What is a wave?

This is a disturbance which travels through a medium and transports

energy in the process.

Transverse waves have motion which are perpendicular to the velocity

while the longitudinal waves move in the direction of the velocity which is

why they are regarded as being  parallel to each other.

Read more about Waves here brainly.com/question/15663649

Answer:

D (The last answer)

Explanation:

In a transverse wave, particles oscillate perpendicular to the direction of wave motion.

In a longitudinal wave, the oscillations of particles are parallel to the direction of propagation.

Choose all the answers that apply.Ionic compounds _____.
-do not dissolve in water
-have high melting points
-have low melting points
-dissolve easily in water
-conduct electricity when melted

Answers

Answer:

high melting points, dissolve easily in water, conduct electricity when melted.

Explanation:

I'm pretty sure
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